#include <REGX52.H>
#include <INTRINS.h>
unsigned char NixieTable[] = {0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
void Delay(unsigned int xms)	 //@12.000MHz 
{
	unsigned char i, j;
	while(xms--){
		i = 2;
	  j = 239;
	do
	{
		while (--j);
	} while (--i);
	}
}
void Nixie(unsigned char Location,Number){
		switch(Location)
			{
				case 1:P2_4 = 1;P2_3 =1;P2_2 =1;break;
				case 2:P2_4 = 1;P2_3 =1;P2_2 =0;break;
				case 3:P2_4 = 1;P2_3 =0;P2_2 =1;break;
				case 4:P2_4 = 1;P2_3 =0;P2_2 =0;break;
				case 5:P2_4 = 0;P2_3 =1;P2_2 =1;break;
				case 6:P2_4 = 0;P2_3 =1;P2_2 =0;break;
				case 7:P2_4 = 0;P2_3 =0;P2_2 =1;break;
				case 8:P2_4 = 0;P2_3 =0;P2_2 =0;break;
			}
			P0 = NixieTable[Number];
			Delay(1);
			P0 = 0x00;

}
void main()
{//哈
		while(1)
		{
		Nixie(1,1);
		//Delay(2);
			Nixie(2,2);
		//Delay(2);
			Nixie(3,3);
		//Delay(2);
			Nixie(4,4);
		//Delay(2);
			
		}

}